With all the Jennifer Lawrence hype going around these days….
Let me take a moment to remind you that the title of ‘the woman to get hurt the most by leaked photos’ is still held by Rosalind Franklin.
Doctors in New York and California have diagnosed among homosexual men 41 cases of a rare and often rapidly fatal form of cancer. Eight of the victims died less than 24 months after the diagnosis was made. The cause of the outbreak is unknown, and there is as yet no evidence of contagion. But the doctors who have made the diagnoses, mostly in New York City and the San Francisco Bay area, are alerting other physicians who treat large numbers of homosexual men to the problem in an effort to help identify more cases and to reduce the delay in offering chemotherapy treatment.
Bacillus cereus (B. cereus) is a toxin-producing bacteria that can cause foodborne illness. Despite being a serious organism, it has a very pun worthy name! Each letter on this shirt is filled with a different kind of microorganism. Any microbiology fan would get a kick out of this shirt!
By Fraggles & Friggles at http://etsy.me/1kEk6go
A virus frozen for at least 30,000 years has come back to life and become infectious again
PREPARE FOR ZOMBIE APOCALYPSE!!!
On a serious note, this virus doesn’t seem to infect humans fortunately. But the bad news is, there could be other viral species/strains out there that could emerge similar to this that are capable of infecting mammals but not fully adapted to infecting humans. And cross species transmission into a host that’s not fully adapted can have dangerous results….
LONDON (Reuters) - A Taliban ban on vaccination is exacerbating a serious polio outbreak in Pakistan, threatening to derail dramatic progress made this year towards wiping out the disease worldwide, health
Nanoparticle Vaccine Yields Better Protection
Many viruses and bacteria infect humans through mucosal surfaces, such as those in the lungs, gastrointestinal tract and reproductive tract. To help fight these pathogens, scientists are working on vaccines that can establish a front line of defense at mucosal surfaces.
Vaccines can be delivered to the lungs via an aerosol spray, but the lungs often clear away the vaccine before it can provoke an immune response. To overcome that, MIT engineers have developed a new type of nanoparticle that protects the vaccine long enough to generate a strong immune response — not only in the lungs, but also in mucosal surfaces far from the vaccination site, such as the gastrointestinal and reproductive tracts.
Toxoplasma gondii’s life cycle is one of the most interesting fixtures of parasitology and biology as a whole. The definitive or reproductive host for the parasite is the common housecat, but the life cycle necessitates transmission through the barn mouse. Research shows that gondii’s eggs are present in a large proportion of cat’s litter boxes, which the barn mouse then interacts with via foraging behavior. The oocysts themselves are highly resistant to weather, temperature, rupture, etc, so they spread to anything that can be contaminated, namely soil, water, food, trash, etc. When the mouse ingests the egg, the parasite grows, and studies dictate an attraction to cat urine is promoted in the infected rodent. The definitive host, the cat, then ingests the mouse, infecting its intestinal track with the parasite, where Toxoplasma can reproduce. Some evolutionary theorists believe this demonstrates an “extended phenotype” which creates a linkage among these species as an adaptation by the Toxoplasma parasite which does not typically transfer directly from cat to cat.
Some human studies indicate a correlative relationship between Toxoplasma infection and mental illness or behavioral changes, but these are both controversial and purely correlative. No causal mechanism has been discovered for the behavioral changes in humans or mice.
Pregnant women are directed by the CDC to avoid cleaning cat litter boxes because Toxoplasma gondii infection is easily transmissible through the prenatal membrane, and prenatal infection is highly correlated with blindness and mental illness in the baby later in life.
What a sweet story, right?
Four intracellular Toxoplasma gondii parasites are shown undergoing cellular division by an internal budding process known as endodyogeny. Staining with a T. gondii surface antigen provided heart-shaped images (shot on Valentine’s Day). The definitive host of these parasites is the cat, but they infect many warm-blooded animals, including humans. While toxoplasmosis is typically a minor disease, T. gondii can cause severe central nervous system disorders of immunocompromised individuals—such as those with AIDS, organ transplants, and lymphoma—as well as birth defects in congenitally infected neonates. Eating undercooked meat and ingesting food or water contaminated with cat feces are the most common routes of infection for humans.
For all you cat people…